<template>
  <div class="login">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
    >
      <h2 class="title"></h2>
      <el-form-item prop="username" v-if="!isSmsLogin">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          prefix-icon="el-icon-user"
          placeholder="账号"
        >
        </el-input>
      </el-form-item>
      <el-form-item prop="password" v-if="!isSmsLogin">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          prefix-icon="el-icon-lock"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="!isSmsLogin">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          border="bottom"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon
            slot="prefix"
            icon-class="validCode"
            class="el-input__icon input-icon"
          />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img" />
        </div>
      </el-form-item>

      <el-form-item prop="mobile" v-if="isSmsLogin">
        <el-input
          v-model="loginForm.mobile"
          type="text"
          auto-complete="off"
          placeholder="手机号"
          prefix-icon="el-icon-user"
        >
        </el-input>
      </el-form-item>
      <el-form-item prop="smsCode" v-if="isSmsLogin">
        <el-input
          v-model="loginForm.smsCode"
          auto-complete="off"
          placeholder="验证码"
          prefix-icon="el-icon-lock"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >

        </el-input>
        <div class="login-code">
          <el-button round @click.native.prevent="getSmsCode">{{
            computeTime > 0 ? `(${computeTime}s)已发送` : "获取验证码"
          }}</el-button>
        </div>
      </el-form-item>

      <el-row>
        <el-checkbox
          v-model="loginForm.rememberMe"
          style="margin: 0px 0px 25px 0px"
          >记住密码</el-checkbox
        >
        <div class="sms-login">
          <el-button
            size="mini"
            type="text"
            @click.native.prevent="loginMethod"
          >
            <span v-if="isSmsLogin">账号密码登录</span>
            <span v-else>短信登录</span>
          </el-button>
        </div>
      </el-row>

      <el-form-item style="width: 100%">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width: 100%"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">

    </div>
  </div>
</template>

<script>
import { getCodeImg, getSmsCode, smsLogin } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      cookiePassword: "",
      computeTime: 0,
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: "",
        mobile: "",
        smsCode: "",
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "用户名不能为空" },
        ],
        mobile: [
          { required: true, trigger: "blur", message: "手机号不能为空" },
        ],
        password: [
          { required: true, trigger: "blur", message: "密码不能为空" },
        ],
        code: [
          { required: true, trigger: "change", message: "验证码不能为空" },
        ],
        // smsCode: [{ required: true, trigger: "blur", message: "验证码不能为空" }]
      },
      loading: false,
      isSmsLogin: false,
      redirect: undefined,
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true,
    },
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    loginMethod() {
      this.isSmsLogin = !this.isSmsLogin;
    },
    getSmsCode() {
      if (!this.computeTime) {
        this.$refs.loginForm.validate((valid) => {
          if (valid) {
            getSmsCode(this.loginForm.mobile).then((res) => {
              if (res.code === 200) {
                this.$message({
                  message: "验证码已发送",
                  type: "success",
                });
                this.loginForm.uuid = res.uuid;
                this.computeTime = 60;
                this.timer = setInterval(() => {
                  this.computeTime--;
                  if (this.computeTime <= 0) {
                    clearInterval(this.timer);
                  }
                }, 1000);
              }
            });
          }
        });
      }
    },
    getCode() {
      getCodeImg().then((res) => {
        this.codeUrl = res.img;
        this.loginForm.uuid = res.uuid;
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get("rememberMe");
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password:
          password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          if (this.isSmsLogin) {
            this.loading = true;
            if (this.loginForm.rememberMe) {
              Cookies.set("mobile", this.loginForm.mobile, { expires: 30 });
              Cookies.set("rememberMe", this.loginForm.rememberMe, {
                expires: 30,
              });
            } else {
              Cookies.remove("mobile");
              Cookies.remove("rememberMe");
            }

            this.$store
              .dispatch("SmsLogin", this.loginForm)
              .then(() => {
                this.$router
                  .push({ path: this.redirect || "/" })
                  .catch(() => {});
              })
              .catch(() => {
                this.loading = false;
              });
          } else {
            this.loading = true;
            if (this.loginForm.rememberMe) {
              Cookies.set("username", this.loginForm.username, { expires: 30 });
              Cookies.set("password", encrypt(this.loginForm.password), {
                expires: 30,
              });
              Cookies.set("rememberMe", this.loginForm.rememberMe, {
                expires: 30,
              });
            } else {
              Cookies.remove("username");
              Cookies.remove("password");
              Cookies.remove("rememberMe");
            }
            this.$store
              .dispatch("Login", this.loginForm)
              .then(() => {
                this.$router
                  .push({ path: this.redirect || "/" })
                  .catch(() => {});
              })
              .catch(() => {
                this.loading = false;
                this.getCode();
              });
          }
        }
      });
    },
  },
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;

  align-items: center;
  height: 100%;
  background: url('../assets/images/bg.png');

  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 10px;
  background: #ffffff;
  margin-left: 120px;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.sms-login {
  width: 25%;
  height: 30px;
  float: right;
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
</style>
